Battery compound.



UNITED STATES PATENT OFFICE.

HENRY BLUMENBERG, JR, OF NEYV YORK, N. Y.

BATTERY COM POUND.

SPECIFICATION forming part of Letters Patent No. 638,042, dated November28, 1899.

Application filed September 8, 1899. Serial No. 729,823. o Specimens-lTo all whom it may concern.-

Be it known that I, HENRY BLUMENBERG, J12, a citizen of the UnitedStates, residing at New York city, (Wakefield,) in the borough of Bronx,in the State of New York, have invented an Improvement in BatteryCompounds, of which the following is a specification.

In Letters Patent No. 626,046, granted to me May 30, 1899, reference ismade to a battery solution containing sulfate of aluminium, togetherwith a bisulfate and a chlorate of the metals of the alkalies-oralkali-earth metals.

In my present invention I find that it is advantageous to use instead ofthe sulfate of aluminium, as set forth in my aforesaid patcut, a chloridof a metal of the alkalies or alkaline-earth metals, such as chlorid ofsodium, and to this I add abisulfate andachlorate of the metals of thealkalies or alkalineearth metals. I have found that this composition,specifically stated as one consisting of chlorid of soda, bisulfate ofsoda, and chlorate of soda, gives excellent results in the variouszinc-carbon type cells,and,furtherm0re,seems to recuperate somewhat morequickly than when the, sulfate of aluminium is used, as in Patent No.626,046. It, furthermore, gives the same electromot-ive force apparentlyand has somewhat lower internal resistance, and has the same advantagesas other solutions namely, that the zines always keep clean, the celldoes not polarize very quickly, it gives no creeping salts, and does notattack or tarnish the connections as In uch as the sal-ammoniacsolution. The salt likewise is not so bulky and will not crystallize inthe bottom of the glass jar. Furthermore, it has this advantage over allother solutions heretofore patented to menamely, that it dissolvessomewhat more rapidly.

I claim as my invention- 1. A compound for a battery solution consistingof achlorid of the metals of the alkalies or alkaline-earth metals and abisulfate and a chlorate of the metals of the alkalies or alkaline earthmetals, substantially as set forth.

2. A battery solution containing chlorid of soda, bisulfate of soda andchlorate of soda, substantially as set forth.

Signed by me this 7th day of September, 1899.

HENRY BLUMENBERG, JR.

Witnesses:

GEO. T. PINCKNEY, S. T. HAVILAND.

